is the study of how to collect, organize, analyze, and interpret
statistics
is a numerical measure that describes an aspect of a population
parameter
is a numerical facsimile or representation of a real-worded phenomenon
simulation
results from omitting population members from the sample
undercoverage
measurements or observations from part of the are used
sample
measuremnets or observations from the entire popukation are used
cenus
is the difference between measurements
sampling error
describes an individual by placing the individual into a category or group, such as a male or female
qualitative
has a true zero
ratio
is the result of poor sample design, sloppy data collection, faulty meausring instruments, bias in questionaries, and so on
non-sampling error
a treatment is deliberately imposed on the individuals in order to observe a possible change in the response or variable being measured
experiment
use a simple___________ sample from the entire population
random
is a list of individuals from which a sample is actually selected
sampling frame
occurs when a subject recieves no treatment but believes he or she is in fact recieving treatment and responds favorably
placebo effect
observations and measurements are conducted in a way that doesnt change the response or the variable being measured
observational
applies to data that consit ofnames, labels, or categories
nominal
has a value or numerical measurement for which operations such as addition or averaging makes sense
quantitative
applies to data that can be arranged in order
interval
differences between data values either cannot be determined or are meaningless
ordinal
is a numerical measure that describes an aspect of a sample
statistic